Promvihan, O. (2026). Development of the Apide Supervision Process for Internal Quality Assurance of Schools Under the Nakhon Si Thammarat Primary Educational Service Area Office 2: Development of the Apide Supervision Process for Internal Quality Assurance of Schools Under the Nakhon Si Thammarat Primary Educational Service Area Office 2. RATANABUTH JOURNAL, 8(2), 349–360. retrieved from https://so07.tci-thaijo.org/index.php/rtnb/article/view/11475